What is a Leap Year?

Note: This video answers the question I raised here, through “Actually, the moment of Earth’s revolution (the spin around the Sun) lasts 365 days, 6 hours, 9 minutes and 9 seconds. The reason why terrans gave the calendaristic year a round number is of practical nature. Still, from the same practical reasons, because of those six additional hours, the day of 29 february is added. I don’t know where the 9 minutes and 9 seconds go….: every 100 years, the first year of the new century (ex: 1800, 1900, 2000, 2100), despite being a leap year, doesn’t receive an additional day in February (the 29th day).

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1 Comment

Filed under Astronomy, Earth, Time

One response to “What is a Leap Year?

  1. Reblogged this on tudorvisanmiu and commented:

    Notă: Acest video răspunde la întrebarea pe care am ridicat-o AICI, prin: “De fapt şi de drept, mişcarea de revoluţie a Pământului durează 365 de zile, şase ore, nouă minute şi nouă secunde. Motivul pentru care pământenii au dat anului calendaristic un număr rotund de zile este unul practic. Totuşi, din aceleaşi necesităţi practice, datorită acelor şase ore suplimentare, din patru în patru ani, se adaugă ziua de 29 februarie. Nu ştiu unde se duc restul de 9 minute şi 9 secunde….”: la fiecare 100 de ani, primul an al noului secol (ex: 1800, 1900, 2000, 2100), deşi este un an bisect, nu primeşte o nouă zi în februarie (a 29-a).

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